bleeding in pregnancy Flashcards
symptoms threatened miscarriage
painless bleeding 6-9 weeks
symptoms incomplete miscarriage
heavy bleeding and cramping, lower abdo pain
symptoms missed miscarriage
little vaginal bleeding and pregnancy symptoms subside
symptoms ectopic
6-8 weels amenorrhea –> light bleeding // severe unilateral abdo pain // shoulder tip pain // cervical excitation
symptoms molar pregnancy
bleeding in fist trimester, extreme pregnancy symptoms, large for dates uterus, v high hCG
what is an antepartum haemorrhage
bleeding from 24 weeks
most common causes APH
placental abruption and placenta praevia
what is placental abruption
normally sited placenta detaches from uterine wall –> maternal haemorrhage
assoc placental abruption
pre-eclampsia // cocaine // multiparity // trauma // maternal age
features placental abruption
shock out of keeping with loss // multuparity // trauma // age
features uterine rupture
shock // continuous pain // tender, tense uterus !! // abnormal foetal heart // coagulation problems // pre-eclampsia, DIC, anuria
mx placental abruption if fetus alive and <36 weeks
distress = C section // no distress = admit and observe, steroids
mx placental abruption if fetus alive and >36 weeks
distress = c section // no distress = vaginal
mx placental abruption if fetus dead
vaginal delivery
maternal complications placental abruption
shock, DIC, renal failure, PPH
maternal complications placental abruption
shock, DIC, renal failure, PPH
fetal complications placental abruption
IUGR, hypoxia, death
what is placenta praevia
placenta lying wholly or partly in lower uterine segment (covering or within 20mm os)
when is placenta praevia diagnosed
20 week scan
RF Placenta praevia
previous c section or scars!! multi-parity, twins, TOP, >40
symptoms Placenta praevia
shock (expected) // NO pain // uterus non tender // fetal heart usually normal
invx Placenta praevia
do NOT perform digital exam until USS // transvaginal USS
grading Placenta praevia
I = placenta reaches lower segment but not internal os // II = reaches os but does not covert it // III = covers internal os (not when dilated) // IV = completely covers
further invx if Placenta praevia diagnosed
rescan at 32 weeks –> rescan every 2 weeks –> final scan at 36-37 weeks
delivery placenta praevia
grades III/IV = c section between 37-38 weeks
mx if pregnant women with known Placenta praevia goes into spontaneous labour
emergency C section (with or without bleeding)
what is vasa praevia
unprotected foetal vessels over internal os
diagnosis vasa praevia
USS
symptoms vasa praevia
sudden, painless, dark bleeding after rupture of membrane
mx vasa praevia
<34 weeks steroids // 34-36 deliver // emergency C section
RF uterine rupture
prolonged labour!!! // IOL, previous rupture, previous C section, raised BMI
symptoms uterine rupture
severe abdo pain // PV bleeding // loss of contractions // hypotension + tachycardia // presenting part retracts back into vagina
mx uterine rupture
C section
what defines PPH
blood loss >500ml vaginally // >1L C section
what is a primary vs secondary PPH
primary = within 24 hours // secondary = 24 hours - 6 weeks
most common causes primary PPH
4 Ts: uterine aTony!!!! // trauma // tissue // thrombin (bleeding or clotting disorder)
RF PPH
previous PPH // prolonged labour // pre-eclampsia // increased age // polyhydramnios // emergency c section // placenta problems // macrosomnia
ABC mx PPH
lie women flat // group and save // crystalloid infusion
ABC mx PPH
lie women flat // group and save // crystalloid infusion
mechanical mx PPH
palpate fundus internally + catheterise patients
medical mx PPH
IV oxytocin // IV or IM ergometrine // IM carboprost // sublinguinal misoprostol
surgical mx PPH
intrauterine balloon tamponade
what causes secondary PPH
retained POC or endometritis (infection)
what is placenta accreta
placenta adheres too far into uterus –> myometrium
symptoms placenta accreta
PPH
diagnosis Placenta accreta
MRI
RF Placenta accreta
previous C section, placenta praevia
placenta accreta, increta, percreta
accreta: attach TO myometrium // increta: invade INTO myometrium // pecreta = THROUGH perimetrium